I don’t think it’s supposed to do that.
This happened on my ride home yesterday…
The metal is actually torn. The broken part hangs out a good inch and change from the rest of the chain ring. Funny thing is that I was actually in the small gear at the time of the break and didn’t notice it until I got to the top of the steep hill near the Birch Aquarium. I guess my cranks aren’t very rigid on this bike.

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